Grain-separator.



A. S. GOODMAN.

GRAIN SEPARATOR.

APPLICATION FILED 1Au.2s.1s1e.- azuzwco nus. 6. 1912.

1,243,284. Patented Oct, 16, 1917.

swarm sooonrran, or okpanbira, o1;

V [exam-Sumatran,

specification a Letters patent.

one

Patented Qct. 1a, 1917.

Application filed January 29, 1916, Serial Noi 7 5,015. Renewed August 6; 1917. Serial 110.184,,788.

To all whom it may ma Be it known that I, AUSTIN S. Goomran, apitizen ofthe United States, rosidingfat Oklahoma, in the county of Oklahoma and State of Oklahoma, have invented certain new and useful Improvei'n nts in Grain- Separators; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to grain separators provided with shaking sieves; and it consists in the novel construction and combinatioi'i of the parts hereinafter fully described and claimed whereby the position of the sieve may be regulated without stopping the machine.

in the drawings, Figure 1 is a longitudinal section through a portion of a grain sep' arator constructed according to this invention. Fig. 9. is' a. cross-section through the machine, taken on. the line wa; in Fig. 1.

The separator is provided with a casing 2, and has threshing mechanism and strawracks of any approved construction. A shoe 3 is arranged in the rear part of the casing, and a chatter screen 4 of any approved construction is secured in the shoe 3. This shoe is supported and reciprocated longitudinally in any approved way, and in the form of the device shown the shoe is provided with a cross-shaft s which slides and revolves in slots (5 or other suitable openin s in the sides of the casing 2. The cross-aha t 5 is journaled in the sides of the shoe and it reciprocates with the shoe. The crossshaft also supports the shoe and the chaffing screen pivotally, and permits a tossing motion to be given to all the separating devices carried by the shoe. A portion of a rod 7 is shown as a means for reciprocating or shaking the shoe, but the shoe may be worked by any approved means.

A blast of air is driven through the chaffer screen in the direction of the arrows by any approved blower or fan. I

A sieve 8 is supported in the shoe under the chafi'er screen, and the rear end portion of this sieve is pivoted to the shoe by pins 9. The front end portion of the sieve is supported from the cross-shaft 5 by, flexible connections 10. These connections may be cords, chains, or any similar devices, and their upper ends are wound upon the crossshaft 5.

The crossshaft 5 hasfahandle is sranged outside the casing for revolving it byhan'chand a tbothe'd wheel'la is secured thecross-shaft. A pawl 15 is pivoted to one side of the shoe, and engages with the teeth of the wheel 14, so that the cross-shaft is held from revolving, and the front end of the sieve is supported at a re-arranged distance from the underside o the chatter screen.

The pawl is operated by hand, and the position of the sieve is adjusted, without stopping the machine, by turning the crossshaft by means of its handle.

The lower ends of the flexible connections 10 are connected to the sieve 8 by means of brackets 16 provided with notches 17. If desired, a second sieve 18 can he slipped into engagement with the notches 17, and its rear end can be hooked onto pins 20 which project from the shoe 3. This sieve is removable and can he slipped in and out of place as often as necessary.

In the preferred form of the device, as shown, the shoe 3 is supported pivotally upon the cross-shaft 5, the said shaft being arranged at about the middle of the shoe so that its end portions balance each other.

\Vhat I claim is:

1. The combination, with a casing, of a shaking shoe supported in the casing, a sieve having its rear end portion pivoted to the shoe, a cross-shaft extending through the casing and journaled in and reciprocating with the shoe, flexible connections wound on the cross-shaft and attached to the front end portions of the said sieve, and means for actuating the cross-shaft to vary the position of the sieve without stopping the machine.

2. The combination,"with a casing provided with slots in its sides, of a shakin shoe arranged in the casing, a cross-she t pivotally supporting the said shoe, said cross-shaft being journaled in and reciproeating with the said shoe and sliding in the slots of the casing, a chafler screen arranged above the said cross-shaft and in the said shoe, a sieve havin its rear end portion pivoted to the shoe, exible connections wound on the cross-shaft and attached to the front end portions of the said sieve, and means for actuatin the cross-shaft to vary the position of t e sieve without stopping the machine.

3. The combination, with a casing, of a shekin shoe supported in the casing, a sieve having its rear end fihf fiikfiq iiivoteiii fio the shoe, brackets secured to the front end portion of the sieve, a removable sieve iiirvifig its rear end ontion pivoted to the said shoev'vit'h its i'dnt end portion engaging slidwblyi'zwith the said brackets, a crosssheft extending through the casing and journaled in and reciprocating with the shoe, flexible connections wound on the 10 msswhmtmu emea'eo the said brackets, and means for actuating the cross-shaft to vary the position of the two sieves without stopping the machine.

In testimony whereof I have niflixei -my 15 Signature.

AUSTIN S. GOODMAN.

Goplea at this patent may be obtained tolflpve cents ea ch, byaddressing the Commissioner of Patents,

. Washington, D. 0. 

